1) perturbation mapping matrix
摄动映射矩阵
2) mapping matrix
映射矩阵
1.
The factors influencing the imaging effect are analysed,and a solution for scattering center matching and mapping matrix selecting is presented.
分析了影响成像质量的因素,并提出了解决散射中心匹配和映射矩阵选择的方法。
2.
A mapping matrix, an intersection matrix and a union matrix between two views are derived from the two corre.
由此推导出两模型视图间的映射矩阵、交矩阵和并矩阵,并作为进一步理论研究和应用的基础之一。
3) matrix perturbation
矩阵摄动
1.
Information-sharing approach to federated filtering based on matrix perturbation theory;
基于矩阵摄动理论的联邦滤波信息分配方法
2.
Recursive PCA algorithm based on rank-one matrix perturbation
基于秩-1矩阵摄动的递归主元分析算法
3.
Based on the matrix perturbation and Epsilon-algorithm, a new static displacement reanalysis for modified structure was given.
基于矩阵摄动法和Epsilon算法,给出了一种新的结构修改静态重分析方法。
4) perturbation matrix
摄动矩阵
1.
The complex matrix is given by the form of the real-part and imaginary part matix decomposition formula sum and using the perturbation matrix to seek the inverse formula and the iteration formula of the complex matrix inversion given in the paper is established.
把复数矩阵写成实部矩阵与虚部矩阵分解式之和形式,利用摄动矩阵求逆公式,建立了本文给出的复数矩阵求逆的迭代公式。
2.
In the paper, the author uses the operational rule of the matrix and the definition of the inverse matrix to give a concrete fomula of the inverse matrix for the perturbation matrix(A+δuv~T) and its general form by alternation(A+UBV).
应用矩阵的运算法则和逆矩阵的定义,对摄动矩阵(A+δuv~T)和它的更一般形式(A+UBV)给出了具体的求逆矩阵公式。
3.
The thesis introduces ways to seek approximate counting of perturbation matrix proper value when there is slight change in non_self_accompanied system matrix, and lists the error grades caused by various methods, and compares the accuracy of the results respectively.
介绍了几种非自伴随系统矩阵发生小改变时 ,求解摄动矩阵特征值的近似方法 ,重点讨论了基于广义Rayleigh商和迹理论的近似计算方法 ,给出了各种方法的误差阶 ,通过算例对各种方法的计算精度进行了比
5) force-mapping matrix
力映射矩阵
1.
Jacobian matrix and force-mapping matrix are calculated from the inverse-kinematics of the parallel-mechanism.
这种方法首先由机构的逆解计算其力映射矩阵、雅可比矩阵。
2.
By the method of vector operation,with the static balance(equations) of shield hinge equipments being deduced,it is obtained force-mapping matrix from the driving force to the terminal force was abtained.
以某型铰接土压平衡式盾构机为研究对象,分析该盾构机铰接装置的机构组成,采用矢量法建立相应的静力学平衡方程,得到从驱动力到末端力的力映射矩阵;针对该力映射矩阵的秩不是满秩的特性,提出求解液压缸驱动力对能控末端力分量的控制方法;并研究在铰接装置的切口环以不同姿态运动时,液压缸驱动力对末端力的控制能力,得到3个能控的末端力分量,为能控末端力分量的动力学方程的建立奠定基础。
6) matrix perturbation method
矩阵摄动法
1.
By means of impulse response and matrix perturbation method of nonlinear system, the author finds that the response statistics of a nonlinear system are subjected to random excitation.
利用线性系统脉冲响应函数的概念,采用矩阵摄动法对非线性系统受随机激励的响应进行分析,得到了求解此类问题的一般途径,给出算例,并讨论了其可信度和精度
2.
A complex modal matrix perturbation method for symmetrical systems is deduced for optimum analysis of non-proportionally damped structures.
为了保证非比例阻尼结构分析的精度和结构参数改变时迭代分析的效率,推导适用于非经典阻尼情况的复模态矩阵摄动法,提高了结构重分析的效率,通过算例分析,表明了该方法在一定范围内具有较高的精度。
3.
When crack expanding problem is studied,a high efficiency semi-analytical matrix perturbation method is put forward.
对于裂纹扩展问题,提出了一种高效的半解析矩阵摄动法。
补充资料:长期摄动
| 长期摄动 secular perturbation 天体在运动过程中,除了受中心主天体的引力作用外,还受到周围其他天体、介质等等诸多因素的作用,这些作用与中心体的引力相比是很小的,因此称为摄动。天体在摄动作用下,其坐标、速度或轨道要素都产生变化,这种变化成分称为摄动项。长期摄动是指天体的坐标、速度或轨道要素的摄动量中随着时间而单调增加或减少的部分,又称长期摄动项。长期摄动反映了天体运动轨道随时间演化的粗略规律,对于研究天体的演化过程和整个力学系统的宏观图像和稳定性有很重要的意义。18世纪以后,许多天体力学家都在研究大行星的运动轨道是否有长期摄动,并且证明,在精确到一阶、二阶小量的情况下大行星轨道大小不会有长期变化。人造天体运动理论中,长期摄动的存在与否是直接影响人造天体寿命的重要因素,例如由于地球大气阻力的长期摄动存在,可能导致人造地球卫星的轨道逐渐变小,最终落入大气层而坠毁。 |
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